Sago Pondweed
Potamogeton pectinatus
Last reviewed: August 2026

Toxicity unknown
Sago Pondweed (Potamogeton pectinatus) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
part shade
Water
high
Size
12"–48" H × 12"–48" W
Bloom
May, Jun, Jul, Aug, Sep
Native to
AL, AR, AZ, CA and 43 more states
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaBrowse plants for this ecoregion
Sago pondweed is an aquatic perennial that grows submerged in ponds, lakes, and slow-moving streams. This native plant produces small spikes of flowers above the water surface during summer months. It requires consistently wet conditions and is not suitable for typical landscape settings.
In an HOA neighborhood
Sago Pondweed takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.
- Requires permanent standing water
- Not suitable for standard residential landscapes
- Would appear dead or absent in typical planting beds
Wildlife value
Provides important habitat and food for waterfowl, with seeds and tubers eaten by ducks and other aquatic birds. The submerged vegetation offers shelter for fish and aquatic invertebrates.
Common questions
- How much sun does Sago Pondweed need?
- Sago Pondweed grows best in part shade conditions.
- When does Sago Pondweed bloom?
- Sago Pondweed blooms in May, June, July, August, and September.
- Where is Sago Pondweed native?
- Sago Pondweed (Potamogeton pectinatus) is native to AL, AR, AZ, CA and 43 more states, per the World Checklist of Vascular Plants (Kew).
- Is Sago Pondweed HOA-friendly?
- Sago Pondweed takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Sago Pondweed? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Planning a bed around it? Start a free plan with this plant
Not sure where to start? Take the 2-minute yard quiz